stock balance report and inclusion of filter on brand in all stock reports

stock/page/stock_balance/stock_balance.js

@@ -0,0 +1,162 @@
+// ERPNext - web based ERP (http://erpnext.com)
+// Copyright (C) 2012 Web Notes Technologies Pvt Ltd
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+wn.require("../app/stock/page/stock_analytics/stock_analytics.js");
+
+wn.pages['stock-balance'].onload = function(wrapper) { 
+	wn.ui.make_app_page({
+		parent: wrapper,
+		title: 'Stock Balance',
+		single_column: true
+	});
+	
+	new erpnext.StockBalance(wrapper);
+	
+	wrapper.appframe.add_home_breadcrumb()
+	wrapper.appframe.add_module_breadcrumb("Stock")
+	wrapper.appframe.add_breadcrumb("icon-bar-chart")
+}
+
+erpnext.StockBalance = erpnext.StockAnalytics.extend({
+	init: function(wrapper) {
+		this._super(wrapper, {
+			title: "Stock Balance",
+			doctypes: ["Item", "Item Group", "Warehouse", "Stock Ledger Entry", "Brand",
+				"Stock Entry"],
+		});
+	},
+	setup_columns: function() {
+		this.columns = [
+			{id: "name", name: "Item", field: "name", width: 300,
+				formatter: this.tree_formatter},
+			{id: "brand", name: "Brand", field: "brand", width: 100},
+			{id: "opening", name: "Opening", field: "opening",
+				formatter: this.currency_formatter},
+			{id: "inflow", name: "In", field: "inflow",
+				formatter: this.currency_formatter},
+			{id: "outflow", name: "Out", field: "outflow",
+				formatter: this.currency_formatter},
+			{id: "closing", name: "Closing", field: "closing",
+				formatter: this.currency_formatter},
+		];
+	},
+	
+	filters: [
+		{fieldtype:"Select", label: "Value or Qty", options:["Value (Weighted Average)", 
+			"Value (FIFO)", "Quantity"],
+			filter: function(val, item, opts, me) {
+				return me.apply_zero_filter(val, item, opts, me);
+			}},
+		{fieldtype:"Select", label: "Brand", link:"Brand", 
+			default_value: "Select Brand...", filter: function(val, item, opts) {
+				return val == opts.default_value || item.brand == val || item._show;
+			}},
+		{fieldtype:"Select", label: "Warehouse", link:"Warehouse", 
+			default_value: "Select Warehouse..."},
+		{fieldtype:"Date", label: "From Date"},
+		{fieldtype:"Label", label: "To"},
+		{fieldtype:"Date", label: "To Date"},
+		{fieldtype:"Button", label: "Refresh", icon:"icon-refresh icon-white", cssClass:"btn-info"},
+		{fieldtype:"Button", label: "Reset Filters"}
+	],
+	
+	setup_plot_check: function() {
+		return;
+	},
+	
+	prepare_data: function() {
+		this.stock_entry_map = this.make_name_map(wn.report_dump.data["Stock Entry"], "name");
+		this._super();
+	},
+	
+	prepare_balances: function() {
+		var me = this;
+		var from_date = dateutil.str_to_obj(this.from_date);
+		var to_date = dateutil.str_to_obj(this.to_date);
+		var data = wn.report_dump.data["Stock Ledger Entry"];
+
+		this.item_warehouse = {};
+
+		for(var i=0, j=data.length; i<j; i++) {
+			var sl = data[i];
+			sl.posting_datetime = sl.posting_date + " " + sl.posting_time;
+			var posting_datetime = dateutil.str_to_obj(sl.posting_datetime);
+			
+			if(me.is_default("warehouse") ? true : me.warehouse == sl.warehouse) {
+				var item = me.item_by_name[sl.item_code];
+				
+				if(me.value_or_qty!="Quantity") {
+					var wh = me.get_item_warehouse(sl.warehouse, sl.item_code);
+					var is_fifo = this.value_or_qty== "Value (FIFO)";
+					var diff = me.get_value_diff(wh, sl, is_fifo);
+				} else {
+					var diff = sl.qty;
+				}
+
+				if(posting_datetime < from_date) {
+					item.opening += diff;
+				} else if(posting_datetime <= to_date) {
+					var ignore_inflow_outflow = this.is_default("warehouse")
+						&& item.voucher_type=="Stock Entry" 
+						&& this.stock_entry_map[item.voucher_no].purpose=="Material Transfer";
+					
+					if(!ignore_inflow_outflow) {
+						if(diff < 0) {
+							item.outflow += Math.abs(diff);
+						} else {
+							item.inflow += diff;
+						}
+					}
+					
+					item.closing += diff;
+				} else {
+					break;
+				}
+			}
+		}
+	},
+	
+	update_groups: function() {
+		var me = this;
+
+		$.each(this.data, function(i, item) {
+			// update groups
+			if(!item.is_group && me.apply_filter(item, "brand")) {
+				var parent = me.parent_map[item.name];
+				while(parent) {
+					parent_group = me.item_by_name[parent];
+					$.each(me.columns, function(c, col) {
+						if (col.formatter == me.currency_formatter) {
+							parent_group[col.field] = 
+								flt(parent_group[col.field])
+								+ flt(item[col.field]);
+						}
+					});
+					
+					// show parent if filtered by brand
+					if(item.brand == me.brand)
+						parent_group._show = true;
+					
+					parent = me.parent_map[parent];
+				}
+			}
+		});
+	},
+	
+	get_plot_data: function() {
+		return;
+	}
+});

stock/page/stock_balance/stock_balance.txt

@@ -0,0 +1,21 @@
+[
+ {
+  "owner": "Administrator", 
+  "docstatus": 0, 
+  "creation": "2012-12-25 13:02:32", 
+  "modified_by": "Administrator", 
+  "modified": "2012-12-25 13:02:32"
+ }, 
+ {
+  "name": "__common__", 
+  "title": "Stock Balance", 
+  "doctype": "Page", 
+  "module": "Stock", 
+  "standard": "Yes", 
+  "page_name": "stock-balance"
+ }, 
+ {
+  "name": "stock-balance", 
+  "doctype": "Page"
+ }
+]